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1 // Copyright 2016 The Chromium Authors. All rights reserved. | 1 // Copyright 2016 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #ifndef NGUnits_h | 5 #ifndef NGUnits_h |
6 #define NGUnits_h | 6 #define NGUnits_h |
7 | 7 |
8 #include "core/CoreExport.h" | 8 #include "core/CoreExport.h" |
9 #include "core/layout/ng/ng_direction.h" | 9 #include "core/layout/ng/ng_direction.h" |
10 #include "core/layout/ng/ng_writing_mode.h" | 10 #include "core/layout/ng/ng_writing_mode.h" |
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132 }; | 132 }; |
133 | 133 |
134 // This struct is used for the margin collapsing calculation. | 134 // This struct is used for the margin collapsing calculation. |
135 struct CORE_EXPORT NGMarginStrut { | 135 struct CORE_EXPORT NGMarginStrut { |
136 LayoutUnit margin_block_start; | 136 LayoutUnit margin_block_start; |
137 LayoutUnit margin_block_end; | 137 LayoutUnit margin_block_end; |
138 | 138 |
139 LayoutUnit negative_margin_block_start; | 139 LayoutUnit negative_margin_block_start; |
140 LayoutUnit negative_margin_block_end; | 140 LayoutUnit negative_margin_block_end; |
141 | 141 |
| 142 LayoutUnit BlockEndSum() const; |
| 143 |
142 void AppendMarginBlockStart(const LayoutUnit& value); | 144 void AppendMarginBlockStart(const LayoutUnit& value); |
143 void AppendMarginBlockEnd(const LayoutUnit& value); | 145 void AppendMarginBlockEnd(const LayoutUnit& value); |
144 void SetMarginBlockStart(const LayoutUnit& value); | 146 void SetMarginBlockStart(const LayoutUnit& value); |
145 void SetMarginBlockEnd(const LayoutUnit& value); | 147 void SetMarginBlockEnd(const LayoutUnit& value); |
146 | 148 |
| 149 bool IsEmpty() const; |
| 150 |
147 String ToString() const; | 151 String ToString() const; |
148 | 152 |
149 bool operator==(const NGMarginStrut& other) const; | 153 bool operator==(const NGMarginStrut& other) const; |
150 }; | 154 }; |
151 | 155 |
152 inline std::ostream& operator<<(std::ostream& stream, | 156 inline std::ostream& operator<<(std::ostream& stream, |
153 const NGMarginStrut& value) { | 157 const NGMarginStrut& value) { |
154 return stream << value.ToString(); | 158 return stream << value.ToString(); |
155 } | 159 } |
156 | 160 |
157 } // namespace blink | 161 } // namespace blink |
158 | 162 |
159 #endif // NGUnits_h | 163 #endif // NGUnits_h |
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